Kylie has an incognito 'cuppa' moment while playing 'Dr Who' waitress

The Dr Who costume department clearly did a grand job transforming one of the world's most stylish women into a waitress for the show's Christmas special. While filming a scene outside a five-star hotel in Swansea pop princess Kylie Minogue was mistaken for a member of staff by an elderly guest.

The pensioner approached the blonde singer, dressed for her role as a waitress on doomed liner Titanic, to ask: "Excuse me love, is it too late for a cup of tea?".

A witness to the scene said: "It was comical. Kylie may be a big star, but this old dear obviously didn't realise. Kylie saw the funny side - she just laughed."

Filming the one-off special resumed at the start of the week after the return to set of the show's leading man, David Tennant. He'd taken time out from the sci-fi series following the death of his mother from cancer. Kylie - who's battled the disease herself in the past - has been comforting the 36-year-old actor as he gets back to work.